[Bug c++/57771] New: g++ misinterprets >> in static_cast

[Bug c++/57771] New: g++ misinterprets >> in static_cast

[mustrumr97 at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57771

            Bug ID: 57771
           Summary: g++ misinterprets >> in static_cast
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mustrumr97 at gmail dot com

template<int a>
struct s{};
s<static_cast<int>(4>>2)> x;

This works in C++98 mode but fails in C++11 mode.
Maybe g++ misunderstands >> as closing angle brackets, but this does not make
sense because they are in (). clang++ compiles this code. This looks like bug
37875 but for casts.

[Bug c++/57771] g++ misinterprets >> in static_cast

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57771

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-07-01
                 CC|                            |jakub at gcc dot gnu.org
   Target Milestone|---                         |4.8.2
     Ever confirmed|0                           |1

[Bug c++/57771] g++ misinterprets >> in static_cast

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57771

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 30416
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30416&action=edit
gcc49-pr57771.patch

Untested fix.

[Bug c++/57771] g++ misinterprets >> in static_cast

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57771

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Jul  3 20:20:30 2013
New Revision: 200647

URL: http://gcc.gnu.org/viewcvs?rev=200647&root=gcc&view=rev
Log:
    PR c++/57771
    * parser.c (cp_parser_postfix_expression) <case RID_STATCAST>
    Temporarily set parser->greater_than_is_operator_p for
    cp_parser_expression and restore from saved value afterwards.

    * g++.dg/template/arg9.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/template/arg9.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog

Author: jakub
Date: Wed Jul  3 20:22:16 2013
New Revision: 200648

URL: http://gcc.gnu.org/viewcvs?rev=200648&root=gcc&view=rev
Log:
    PR c++/57771
    * parser.c (cp_parser_postfix_expression) <case RID_STATCAST>
    Temporarily set parser->greater_than_is_operator_p for
    cp_parser_expression and restore from saved value afterwards.

    * g++.dg/template/arg9.C: New test.

Added:
    branches/gcc-4_8-branch/gcc/testsuite/g++.dg/template/arg9.C
Modified:
    branches/gcc-4_8-branch/gcc/cp/ChangeLog
    branches/gcc-4_8-branch/gcc/cp/parser.c
    branches/gcc-4_8-branch/gcc/testsuite/ChangeLog